# SDR CA090604006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 3, 2009
- Submitted: June 16, 2009
- Operation: General aviation
- Make and model: Diamon DA20-C1
- Registry model: [Diamon DA20-C1](https://openairdocs.org/model/diamond-aircraft-ind-da20-c1) (OpenAirDocs)
- Aircraft time: 4,814 hours
- Engine: Cont IO240B
- Propeller: Snsnch W69EK63
- System (JASC): [2434 · DC Generator-Alternator](https://openairdocs.org/jasc/2434)
- Part: Mount Bracket
- Part number: 2224121400
- Condition: Cracked
- Location: Alternator
- Part time: 2,471 hours
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA090604006

## Discrepancy

(CAN) UPON ROUTINE INSP, IT WAS NOTED THAT THE ALTERNATOR MOUNTING BRACKET WAS CRACKED AT THE UPPER BOLT HOLE WHERE THE AN4-5A BOLT ATTACHES TO THE 22-2412-00-12 SPACER. THE BOLT HOLE WAS ELONGATED AND THE CRACK PROGRESSED TO THE EDGE OF THE BRACKET WHERE A SMALL PIECE OF THE BRACKET MATERIAL (ABOUT 1 INCH LONG) WAS SEPARATED FROM THE BOLT HOLE AREA. THE ALTERNATOR OPERATION WAS NOT AFFECTED AS ITS MOUNTING REMAINED UNDISTURBED BY THE DEFECT AT THIS TIME.

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